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Novartis AG
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JR Geigy AG
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Publication date
Application filed by JR Geigy AGfiledCriticalJR Geigy AG
Priority to ES0225356ApriorityCriticalpatent/ES225356A1/en
Publication of ES225356A1publicationCriticalpatent/ES225356A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for the preparation of metallizable trisazo dyes characterized in that 1 mol of tetrazotized 4 4'-diamino-3 3'-dialkoxydiphenyl is coupled on the one hand with 1 mol of an O-oxybenzenecarboxylic acid and on the other with 1 mol of a monoazo-dye of formula general ** (see formula) ** in which it means X the radical of a diazotized aromatic-heterocyclic amino compound containing nitrogen Which contains the azo group in a neighboring position with respect to a ring nitrogen atom and in which R represents a hydrogen atom, an aralkoyl alkoyl group or an aryl group. (Machine-translation by Google Translate, not legally binding)
ES0225356A1955-12-031955-12-03A procedure for the preparation of metalizable threads (Machine-translation by Google Translate, not legally binding)
ExpiredES225356A1
(en)
Procedure for the preparation of metalizable monoazocolorants and susu complex heavy matal compounds (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of insoluble bisazous colors in water and the colorants obtained by this process (Machine-translation by Google Translate, not legally binding)